Dick Greenhaus asks if you could consider Bruce Springsteen as traditional (deligerately lower case).
I think you can. At a time when sequenced and synthesized music was predominant, he reverted to the traditions of guitar-based american rock music.
The serious point is to stress that there are many traditions. In particular there seems to be a big difference between US and UK approaches to it.
We've had a comparison with vintage cars, but I'd like to compare music with antique furniture. It is antique whether or not the maker is known, purely as a consequence of age. However, some antiques have been restored- often beyond recognition. Some apparent antiques are actually reproductions.
The really valueable pieces are those which are completely original, in good condition, and vitally, were well made in the first place.
Jumping back to songs- the same applies to them. The real, worthwhile traditional songs are those were great songs to start with, and which have not been Carthied, Watersoned or Hutchinged beyong recognition.
Cheers
Dave